Fig. 2From: Wharton’s jelly mesenchymal stem cell-based or umbilical vein endothelial cell-based serum-free coculture with cytokines supports the ex vivo expansion/maintenance of cord blood hematopoietic stem/progenitor cellsThe expansion folds of TNCs, CD34+ cells, and CD34+CD38− cells under different coculture conditions. The asterisk indicates p < 0.05, comparing the counts before cultivation (day 0) and after harvest (day 10), and the caret indicates p < 0.05, comparing the counts with cytokine groups (UMC, UEC, UC) and without cytokine groups (UM, UE) at day 10Back to article page